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Journal article
The peculiar elongational viscosity of concentrated solutions of monodisperse PMMA in oligomeric MMA
Rheologica acta, v 57(8-9), pp 591-601
2018
Abstract
Concentrated solutions of nearly monodisperse poly(methyl methacrylate), PMMA-270k and PMMA-86k, in oligo(methyl methacrylate), MMA o-4k and MMA o-2k, investigated by Wingstrand et al. (Phys Rev Lett 115:078302, 2015) and Wingstrand (2015) do not follow the linear-viscoelastic scaling relations of monodisperse polystyrenes (PS) dissolved in oligomeric styrene (Wagner in Rheol Acta 53:765–777, 2014a, in Non-Newtonian Fluid Mech 222:121–131, 2014b; Wagner et al. in J Rheol 59:1113–1130, 2015). Rather, PMMA-270k shows an attractive interaction with MMA, in contrast to the interaction of PMMA-86k and MMA. This different behavior can be traced back to different tacticities of the two polymers. The attractive interaction of PMMA-270k with o-4k creates pseudo entanglements, which increase the interchain tube pressure, and therefore, the solution PMMA-270k/o-4k shows, as reported by Wingstrand et al. (Phys Rev Lett 115:078302, 2015), qualitatively a similar scaling of the elongational viscosity with ε˙ð Þ τR −1=2 as observed for polystyrene melts. For the solution PMMA-270/o-2k, this effect is only seen at the highest elongation rates investigated. The elongational viscosity of PMMA-86k dissolved in oligomeric MMA is determined by the Rouse time of the melt, as in the case of polystyrene solutions.
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Details
- Title
- The peculiar elongational viscosity of concentrated solutions of monodisperse PMMA in oligomeric MMA
- Creators
- Manfred H. Wagner - Technische Universität BerlinSara L. Wingstrandt - Technical University of DenmarkNicolas J. Alvarez - Drexel UniversityEsmaeil Narimissa - Technion – Israel Institute of Technology
- Publication Details
- Rheologica acta, v 57(8-9), pp 591-601
- Publisher
- Springer Berlin Heidelberg
- Number of pages
- 11
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000442727500004
- Scopus ID
- 2-s2.0-85051662815
- Other Identifier
- 991019167616704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Mechanics